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FaTM6 Controls Flower Development in Strawberry
Posted by: Prof. Dr. M. Raupp (IP Logged)
Date: July 30, 2018 06:10AM

The B-class of MADS-box transcription factors has been studied in many plant
species, but remain uncharacterized in the Rosaceae family. APETALA3 (AP3),
a member of this class, is known to control the petals and stamens in
Arabidopsis thaliana. Carmen Martín-Pizarro, together with her colleagues
from the Universidad de Malaga in Spain, aims to learn AP3's role in the
cultivated strawberry (Fragaria × ananassa) by studying an AP3 member,

Using CRISPR-Cas9 system, the team aimed to knockout the FaTM6 to
characterize the function of FaTM6 in flower development. An analysis of the
target sites showed a high efficiency genome editing already in the T0
generation. Phenotypic characterization of the mutant lines indicates that
FaTM6 plays a key role in petal and especially in anther development in

These results validate that FaTM6 plays a role in flower development in
strawberry. This study also confirms that CRISPR-Cas9 can be applied in an
octoploid species such as the cultivated strawberry.


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